## Water Pressure at Temperature Calculator

Sure, here’s a table showing the water pressure at various temperatures:

Temperature (°C) | Temperature (°F) | Water Pressure (psi) | Water Pressure (kPa) |
---|---|---|---|

0 | 32 | 0.434 | 2.99 |

10 | 50 | 0.868 | 5.98 |

20 | 68 | 1.302 | 8.97 |

30 | 86 | 1.736 | 11.96 |

40 | 104 | 2.17 | 14.95 |

50 | 122 | 2.604 | 17.94 |

60 | 140 | 3.038 | 20.93 |

70 | 158 | 3.472 | 23.92 |

80 | 176 | 3.906 | 26.91 |

90 | 194 | 4.34 | 29.9 |

100 | 212 | 4.774 | 32.89 |

Note: The values in this table assume standard atmospheric pressure at sea level (approximately 14.7 psi or 101.3 kPa). The water pressure is given in pounds per square inch (psi) and kilopascals (kPa). The temperatures are provided in both Celsius and Fahrenheit for reference.

## FAQs

1. What is the pressure of water at 20 degrees?

The pressure of water at 20 degrees Celsius at sea level is approximately 2.34 psi (pounds per square inch) or 16.1 kPa (kilopascals).

**2. What is the pressure of water at 30 degrees?**

The pressure of water at 30 degrees Celsius at sea level is approximately 4.24 psi or 29.2 kPa.

**3. What is water pressure at 25 degrees?**

The pressure of water at 25 degrees Celsius at sea level is approximately 3.17 psi or 21.9 kPa.

**4. What is the pressure of water at 100 degrees?**

The pressure of water at 100 degrees Celsius at sea level is approximately 14.7 psi or 101.3 kPa. At this temperature, water boils and turns into steam.

**5. What is the partial pressure of water at 20 degrees?**

The partial pressure of water vapor at 20 degrees Celsius can be calculated using the vapor pressure of water at that temperature. At 20 degrees Celsius, the vapor pressure of water is approximately 17.5 mmHg (millimeters of mercury) or 2.33 kPa.

**6. What temp does water boil under 20 psi?**

The boiling point of water increases with pressure. Under 20 psi (approximately 137.9 kPa) of pressure, the boiling point of water is around 120 degrees Celsius.

**7. How much pressure is under 30 feet of water?**

The pressure at a depth of 30 feet underwater is approximately 13.02 psi or 89.7 kPa.

**8. What is the pressure of water at 35?**

I assume you meant “What is the pressure of water at 35 degrees Celsius?” At 35 degrees Celsius at sea level, the pressure of water is approximately 5.92 psi or 40.8 kPa.

**9. What is the pressure of water at 60 degrees?**

At 60 degrees Celsius at sea level, the pressure of water is approximately 8.14 psi or 56.1 kPa.

**10. What temp is water at 15 psi?**

At 15 psi (approximately 103.4 kPa) of pressure, the temperature at which water boils is around 121 degrees Celsius.

**11. Is 20 psi water pressure too low?**

A water pressure of 20 psi is considered very low and may not be sufficient for normal household water needs. Adequate water pressure for most homes is typically around 40-60 psi.

**12. Is 25 psi too low for water pressure?**

Yes, 25 psi is also considered too low for water pressure. It may result in weak water flow and difficulties in performing regular tasks like showering or running appliances.

**13. What is water pressure 200 degrees?**

At 200 degrees Celsius, water would typically be in a gaseous state (steam) rather than a liquid, and its pressure would depend on the specific conditions.

**14. What is water pressure at 180 degrees?**

At 180 degrees Celsius, water would still be in a gaseous state (steam), and its pressure would depend on the specific conditions.

**15. What is the vapor pressure of water at 80 C?**

The vapor pressure of water at 80 degrees Celsius is approximately 355.4 mmHg or 47.4 kPa.

**16. How do you solve for water pressure?**

To calculate water pressure at a specific depth, you can use the formula: Pressure (in psi) = Depth (in feet) × 0.434.

**17. What is the normal partial pressure of water?**

The normal partial pressure of water in the Earth’s atmosphere is relatively low, around 0.03 kPa or 0.23 mmHg.

**18. What is the partial pressure of water at 300k?**

The partial pressure of water vapor at 300 Kelvin (approximately 26.85 degrees Celsius) depends on the relative humidity of the air.

**19. How much does 1 psi raise the boiling point?**

An increase of 1 psi in pressure raises the boiling point of water by approximately 3 degrees Fahrenheit (or about 1.67 degrees Celsius).

**20. What pressure does water boil at 40 degrees?**

At 40 degrees Celsius at sea level, water does not boil. Water boils at 100 degrees Celsius at atmospheric pressure. To boil at 40 degrees Celsius, water would need to be under very high pressure.

**21. What pressure does water boil at 70 degrees?**

At 70 degrees Celsius at sea level, water does not boil. Water boils at 100 degrees Celsius at atmospheric pressure. To boil at 70 degrees Celsius, water would need to be under higher pressure.

**22. How much pressure is 50 feet under water?**

At a depth of 50 feet underwater, the pressure is approximately 21.7 psi or 149.5 kPa.

**23. What is the psi at 33 feet underwater?**

At a depth of 33 feet underwater, the pressure is approximately 14.3 psi or 98.6 kPa.

**24. What is the pressure at a depth of 10 ft of water?**

At a depth of 10 feet underwater, the pressure is approximately 4.34 psi or 29.9 kPa.

**25. What is the pressure at 35,000 feet underwater?**

Water pressure is not usually measured in feet underwater but in psi or kPa. At a depth of 35,000 feet underwater, the pressure is extremely high, roughly 15,139 psi or 104,383 kPa.

**26. Is 45 psi too low for water pressure?**

Yes, 45 psi is too low for water pressure in most cases. Adequate water pressure for most homes is typically around 40-60 psi.

**27. Is 35 psi too low for water pressure?**

Yes, 35 psi is considered too low for water pressure. It may result in inadequate water flow and various operational issues.

**28. Is 60 psi too high for water pressure?**

60 psi is within an acceptable range for water pressure in most homes. However, extremely high water pressure could potentially cause damage to plumbing fixtures and appliances.

**29. How many PSI is 1 foot of water?**

One foot of water exerts a pressure of approximately 0.433 psi.

**30. How much does water pressure change with temperature?**

Water pressure does not change with temperature unless the volume or amount of water changes. However, the boiling point of water, which is related to pressure, changes with temperature.

**31. How high is 40 psi water?**

40 psi water pressure can push water to a height of about 92.32 feet.

**32. What does 45-degree water feel like?**

45-degree water would feel very cold to most people. It’s a temperature where swimming becomes uncomfortable without a wetsuit.

**33. How high will 1 psi push water?**

1 psi can push water to a height of about 2.31 feet.

**34. Is 50 psi good water pressure for a house?**

Yes, 50 psi is generally considered good water pressure for a house.

**35. Is 70 psi good water pressure?**

70 psi is relatively high water pressure and may cause issues with plumbing fixtures and appliances if not properly regulated.

**36. Is 65 psi good water pressure?**

65 psi is generally considered good water pressure for most households.

**37. Is 55 psi water pressure good?**

55 psi is generally considered good water pressure for most households.

**38. How can I make my shower pressure stronger?**

To improve your shower pressure, you can try cleaning the showerhead, removing any mineral deposits that may be causing blockages. You can also check if there’s a water pressure regulator installed in your home and adjust it if needed. If the water pressure remains low, you might need to contact a plumber to assess the plumbing system.

**39. What is a dangerously low psi?**

A dangerously low psi for water pressure would typically be below 20 psi, as it may result in inadequate water flow and difficulties in performing regular household tasks.

**40. Does increasing pipe size increase water pressure?**

Increasing the pipe size will not increase water pressure. In fact, larger pipes can result in a slight decrease in water pressure due to the increased volume that needs to be filled.

**41. Does gallons per minute affect water pressure?**

Yes, gallons per minute (GPM) can affect water pressure. When more water is flowing through a fixed pipe size, the pressure will decrease. Conversely, reducing the flow rate will result in increased pressure.

**42. How many gallons per minute is a 1-inch pipe?**

The flow rate in a 1-inch pipe can vary depending on the water pressure and other factors. A typical 1-inch pipe can handle a flow rate of about 12-20 gallons per minute.

**43. Is 150 psi too high for water pressure?**

Yes, 150 psi is generally considered too high for water pressure and can cause damage to plumbing fixtures and appliances. A pressure-reducing valve is usually installed to lower the pressure to a safe level.

**44. Does water pressure increase with height?**

Yes, water pressure increases with depth or height. For every 10.2 meters (33.5 feet) increase in depth or height, the water pressure increases by approximately 1 atmosphere (14.7 psi or 101.3 kPa).

**45. Is 110 psi water pressure too high?**

Yes, 110 psi is too high for water pressure and can lead to plumbing issues and damage. Pressure-reducing valves are often used to regulate the pressure to a safe level.

**46. What is the vapor pressure of water at 90?**

Assuming you meant 90 degrees Celsius, the vapor pressure of water at this temperature is approximately 526.5 mmHg or 70.2 kPa.

**47. At what pressure will water boil at 90 C?**

At atmospheric pressure, water boils at 100 degrees Celsius. To boil at 90 degrees Celsius, water would need to be under higher pressure.

**48. What is the vapor pressure of water at 90 deg C?**

The vapor pressure of water at 90 degrees Celsius is approximately 526.5 mmHg or 70.2 kPa.

**49. Does water pressure increase with depth?**

Yes, water pressure increases with depth. For every 10.2 meters (33.5 feet) increase in depth, the water pressure increases by approximately 1 atmosphere (14.7 psi or 101.3 kPa).

**50. How can I measure my water pressure at home?**

You can measure your water pressure at home using a water pressure gauge that you can attach to an outdoor hose bib or a faucet. Turn off all water-using appliances and fixtures, attach the gauge, and open the faucet to get a reading of the water pressure.

**51. How do you convert feet to PSI when calculating water pressure?**

To convert feet to psi when calculating water pressure, divide the depth in feet by 2.31. For example, if the depth is 20 feet, the water pressure is 20 / 2.31 = 8.66 psi.

**52. What is the difference between partial pressure and vapor pressure?**

Partial pressure refers to the pressure exerted by an individual gas in a mixture of gases. Vapor pressure, on the other hand, specifically refers to the pressure exerted by the vapor phase of a substance (like water) when it is in equilibrium with its liquid or solid phase at a specific temperature.

**53. What are the three states of water at normal pressure?**

At normal atmospheric pressure, water exists in three states: solid (ice), liquid (water), and gas (water vapor).

**54. What is the highest psi water pressure?**

The highest psi water pressure typically encountered in household systems is around 80 psi, which is often regulated down to a safer level.

**55. What is the formula for partial pressure?**

The formula for calculating the partial pressure of a gas in a mixture is:

Partial Pressure = Total Pressure × Mole Fraction of the Gas

**56. What pressure is critical for water?**

The critical pressure of water is about 217.7 atmospheres (atm) or 3,206 psi at a temperature of approximately 374 degrees Celsius.

**57. Is water pressure equal in all directions?**

Yes, water pressure is equal in all directions at a specific depth due to the hydrostatic pressure exerted by the weight of the water column above.

**58. At what pressure does water become solid?**

Water becomes solid (ice) at atmospheric pressure (approximately 1 atm) when the temperature is at or below 0 degrees Celsius.

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