Answer:
Q = mcT ...you can either substitute the molar heat capacity of water in the place of c or the specific heat capacity of water.
Explanation:
Formula
V/T = V1/T1
Givens
V = 430 L
T = - 42 °C = - 42 + 273 = 231°K
V1 = ??
T1 = 18°C + 273 = 291°K
The pressure is a constant.
Solution
420/231 = V1/291 Multiply by 291
420*291 / 231 = V1
V1 = 122220 / 231
V1 = 521.1 L
First find the moles of CO3.
Answer:
784500 Joules
Explanation:
To start, you will need an equation to find the change in energy. This can be found by using
or by using integrated heat capacities.
to find the mass of water,

1kg/L is the density of water.
Then, 
Notice that all of the units do not cancel out properly, so some unit conversions are needed to find the correct answer.