What is the specific heat of water in BTU?
What is the specific heat of water in BTU?
1.0 Btu/lb/°F
The heat capacity of water is 1.0 Btu/lb/°F (= 4.2 × 103 J/kg/°K); thus, the heat capacity of any material will always be numerically equal to the specific heat.
What is the heat capacity of water?
4,184 Joules
One of water’s most significant properties is that it takes a lot of energy to heat it. Precisely, water has to absorb 4,184 Joules of heat (1 calorie) for the temperature of one kilogram of water to increase 1°C. For comparison sake, it only takes 385 Joules of heat to raise 1 kilogram of copper 1°C.
How many BTUs does it take to heat 5 gallons of water?
There are 8.35*5=41.75 lbs in 5 gallons. To take water from 75 to 212 therefore requires: (212-75)*41.75=5720 BTU.
What is the heat capacity of water gas?
Table of specific heat capacities
| Substance | Phase | Molar heat capacity, CP,m J⋅mol−1⋅K−1 |
|---|---|---|
| Isobaric | ||
| Water at 100 °C (steam) | gas | 37.47 |
| Water at 25 °C | liquid | 75.327 |
| Water at 100 °C | liquid | 75.327 |
How do you calculate the heat capacity of water?
The specific heat capacity of water is 4.18 J/g/°C. We wish to determine the value of Q – the quantity of heat. To do so, we would use the equation Q = m•C•ΔT. The m and the C are known; the ΔT can be determined from the initial and final temperature.
How many BTUs does it take to boil 1 pound of water?
That one pound of water must absorb 970 Btu’s before it all turns to steam, and will stay at 212°F during the process. That’s one match required to raise the temperature by one degree, and then almost 1,000 matches to boil off the water while not raising the temperature.
How do you calculate water heat?
Calculate the kilowatt-hours (kWh) required to heat the water using the following formula: Pt = (4.2 × L × T ) ÷ 3600. Pt is the power used to heat the water, in kWh. L is the number of liters of water that is being heated and T is the difference in temperature from what you started with, listed in degrees Celsius.
How do you find the specific heat capacity of water?
What is the heat capacity of water vapor?
1.996 kJ/kgK
The specific heat capacity, or the amount of heat needed to raise the temperature of a specific substance in a specific form one degree Celsius, for water is 4.187 kJ/kgK, for ice 2.108 kJ/kgK, and for water vapor (steam) 1.996 kJ/kgK.
What is the heat capacity of 175 Gg of liquid water?
The heat capacity of 175 g of liquid water is 732.55 J/°C.
