*When mixing hot and cold water, the final temperature depends on the initial temperatures and proportions. Assuming typical specific heat capacities for water, mixing equal amounts of 70°C hot water and 40°C cold water will result in a final temperature of approximately 55°C.*

## Mixing Hot and Cold Water Temperature Calculator

Mass of Hot Water (g) | Initial Temperature of Hot Water (°C) | Mass of Cold Water (g) | Initial Temperature of Cold Water (°C) | Final Temperature (°C) |
---|---|---|---|---|

100 | 90 | 600 | 20 | 30 |

50 | 70 | 50 | 40 | 55 |

200 | 80 | 300 | 10 | 30 |

75 | 60 | 25 | 30 | 57 |

150 | 45 | 450 | 15 | 25 |

## FAQs

**How do you calculate the temperature of water when mixed?** The final temperature of a mixture of water can be calculated using the principle of conservation of energy, specifically the equation for heat transfer:

**Q = m * c * ΔT**

Where:

- Q is the heat energy transferred.
- m is the mass of the water.
- c is the specific heat capacity of water.
- ΔT is the change in temperature.

**How do you find the final temperature of two waters?** To find the final temperature when mixing two waters, you can use the heat transfer equation mentioned above. The final temperature will depend on the masses and initial temperatures of the two waters.

**What happens to the temperature when you mix hot and cold water?** When you mix hot and cold water, the resulting temperature will be somewhere between the initial temperatures of the hot and cold water. It will tend towards the temperature of the water with the higher initial temperature.

**What happens when you mix water of two different temperatures?** When you mix water of two different temperatures, heat will transfer from the hotter water to the colder water until they reach a common final temperature.

**What is the formula for the final temperature?** The formula for the final temperature when mixing two substances with different temperatures can be derived from the heat transfer equation:

**Tf = (m1 * c1 * T1 + m2 * c2 * T2) / (m1 * c1 + m2 * c2)**

Where:

- Tf is the final temperature.
- m1 and m2 are the masses of the substances.
- c1 and c2 are their respective specific heat capacities.
- T1 and T2 are their initial temperatures.

**What is the temperature of a mix formula?** The formula for the final temperature of a mixture depends on the specific heat capacities and initial temperatures of the substances being mixed, as shown in the previous answer.

**What should final hot water temperature be?** The final hot water temperature in a mixing scenario will depend on the initial temperatures and proportions of hot and cold water being mixed. There is no fixed “should be” temperature; it varies based on the intended use and personal preference.

**What would be the final temperature of a mixture of 100 g of water at 90°C and 600 g of water at 20°C?** Assuming both waters have a specific heat capacity of approximately 4.18 J/g°C, you can use the heat transfer equation:

**Tf = (m1 * c1 * T1 + m2 * c2 * T2) / (m1 * c1 + m2 * c2)**

Tf = [(100 g * 4.18 J/g°C * 90°C) + (600 g * 4.18 J/g°C * 20°C)] / (100 g * 4.18 J/g°C + 600 g * 4.18 J/g°C)

Tf ≈ (37740 J + 50160 J) / (418 J + 2508 J) Tf ≈ 87900 J / 2926 J Tf ≈ 30°C

So, the final temperature of the mixture would be approximately 30°C.

**What is equivalent temperature of a mixture?** The equivalent temperature of a mixture is the single temperature at which two or more substances in a mixture collectively reach thermal equilibrium after mixing.

**What is a blended water temperature?** Blended water temperature is the temperature resulting from mixing hot and cold water to achieve a desired temperature for various purposes like bathing or heating.

**What temperature change is expected during the mixing of two liquids?** The temperature change during the mixing of two liquids depends on their initial temperatures and specific heat capacities. The temperature may increase or decrease, or it may remain relatively constant, depending on the properties of the liquids and their proportions.

**How do you find the final temperature of two objects?** To find the final temperature when mixing two objects, you can use the heat transfer equation mentioned earlier, considering the masses, specific heat capacities, and initial temperatures of the objects.

**What is the temperature of a mixture of ice and water?** The temperature of a mixture of ice and water will depend on the proportions of ice and water and their initial temperatures. It will generally be close to the melting point of ice, which is 0°C (32°F).

**How do you find the final temperature using Charles Law?** Charles’s Law deals with the relationship between the volume and temperature of a gas at constant pressure. It doesn’t directly apply to finding the final temperature when mixing substances. The heat transfer equation is more appropriate for such calculations.

**Does mixing affect temperature?** Yes, mixing substances with different temperatures can affect the temperature of the resulting mixture. Heat will transfer from the hotter substance to the colder one until thermal equilibrium is reached.

**How do you calculate mixing?** Mixing can involve various calculations depending on the substances, temperatures, and proportions involved. Generally, you calculate mixing by considering the conservation of energy and using equations related to heat transfer and specific heat capacity.

**How do you make formula with hot and cold water?** To make a formula with hot and cold water, you mix the two at specific proportions to achieve the desired temperature for the formula. The exact proportions will depend on the required formula temperature and the initial temperatures of the hot and cold water.

**Does turning up water heater make hot water last longer?** Turning up the water heater temperature setting will not make hot water last longer. It will increase the temperature of the hot water, but the total amount of hot water available remains the same. To increase the duration of hot water, you may need a larger water heater or more efficient insulation.

**What is the OSHA commercial hot water temperature regulations?** OSHA (Occupational Safety and Health Administration) does not have specific regulations regarding commercial hot water temperature. However, hot water in commercial settings should be maintained at a safe temperature to prevent scalding or burns. Typically, a safe range is around 100 to 120°F (37 to 49°C).

**Is 140 degrees too hot for a water heater?** A water heater set to 140 degrees Fahrenheit (60 degrees Celsius) is generally considered too hot for most domestic uses. It can cause scalding and burns. The recommended safe temperature for water heaters is around 120°F (49°C) to prevent such injuries.

**What would be the final temperature of a mixture of 50 g of water at 20 degrees Celsius?** The final temperature of a mixture of 50 g of water at 20°C would depend on what it’s mixed with. If you’re mixing it with a substance at a different temperature, you would use the heat transfer equation to calculate the final temperature.

**What would be the final temperature of a mixture of 50 g of water at 20 degrees Celsius temperature and 50 grams of water at 40 degrees temperature?** Assuming both water samples have a specific heat capacity of approximately 4.18 J/g°C, you can use the heat transfer equation as described earlier to calculate the final temperature.

**What would be the final temperature of a mixture of 50g of water at 20°C and 50g of water at 40°C temperature?** Assuming both water samples have a specific heat capacity of approximately 4.18 J/g°C, you can use the heat transfer equation as described earlier to calculate the final temperature.

**What would be the final temperature of a mixture of 50g of water at 20°C?** The final temperature of a mixture of 50 g of water at 20°C would depend on what it’s mixed with. If you’re mixing it with a substance at a different temperature, you would use the heat transfer equation to calculate the final temperature.

**What is the final temperature when mixing two liquids?** The final temperature when mixing two liquids depends on their masses, specific heat capacities, and initial temperatures. You can calculate it using the heat transfer equation mentioned earlier.

**What is the final temperature of the mixture if 10g of ice at 10°C is mixed with 10g of water at 10°C?** In this case, the ice will melt and reach the same temperature as the water, which is 10°C. This is because the energy required for the phase change (melting) comes from the heat of the water, causing the temperature to remain constant until all the ice has melted.

**How much energy is needed to vaporize 10 grams of water at 100°C?** To vaporize 10 grams of water at 100°C, you need to calculate the heat energy required for the phase change from liquid to vapor. The heat of vaporization for water is approximately 2260 J/g. So, the energy required would be:

Energy = mass * heat of vaporization Energy = 10 g * 2260 J/g = 22,600 J

**How much heat energy is transferred when 10.0 grams of water at 50°C cools to 25°C?** To calculate the heat energy transferred, you can use the heat transfer equation:

Q = m * c * ΔT

Where:

- Q is the heat energy transferred.
- m is the mass of water (10.0 g).
- c is the specific heat capacity of water (approximately 4.18 J/g°C).
- ΔT is the change in temperature (final temperature – initial temperature).

ΔT = 25°C – 50°C = -25°C

Q = 10.0 g * 4.18 J/g°C * (-25°C) = -1045 J

So, 1045 J of heat energy is transferred out of the water as it cools from 50°C to 25°C.

**What are the three formulas for temperature conversions?** The three commonly used temperature conversion formulas are:

- Celsius to Fahrenheit:
**°F = (°C * 9/5) + 32** - Fahrenheit to Celsius:
**°C = (°F – 32) * 5/9** - Celsius to Kelvin:
**K = °C + 273.15**

**What is the formula for temperature difference?** The formula for temperature difference is simply the subtraction of one temperature from another:

**ΔT = T2 – T1**

Where:

- ΔT is the temperature difference.
- T2 is the final temperature.
- T1 is the initial temperature.

**What is it called when two objects with different temperatures mix and eventually reach the same temperature?** When two objects with different temperatures mix and eventually reach the same temperature, it is called thermal equilibrium. At thermal equilibrium, there is no net heat flow between the objects, and they have the same final temperature.

**Is it possible for the temperature of two items to change by different degrees of temperature but change by the same amount of heat energy?** Yes, it is possible for two items to change by different degrees of temperature but change by the same amount of heat energy. This can happen when the specific heat capacities of the two items are different. Specific heat capacity determines how much heat energy is required to change the temperature of a substance by a certain amount. Items with lower specific heat capacities will experience larger temperature changes for the same amount of heat energy transfer compared to items with higher specific heat capacities.

**Is it OK to swim in 80 degree water?** Swimming in 80-degree water can be comfortable for many people, especially in warm weather. However, individual preferences and tolerance to water temperature vary. It’s essential to be aware of your own comfort and safety while swimming, and always exercise caution in colder water, as it can lead to hypothermia if you stay in for an extended period.

**How long can you survive in 85-degree water?** Survival time in 85-degree water depends on various factors, including the individual’s physical condition, clothing, and activity level. In general, a person can survive for several hours in water at this temperature, but exhaustion and hypothermia can set in if not properly dressed or if exposed for an extended period.

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