Answer:
39.1 °C
Explanation:
Recall the equation for specific heat:
Where q is the heat, m is the mass, c is the specific heat of the substance (in this case water), and delta T is the change in temperature.
You should know that the specific heat of water is 1 cal/g/C.
Using the information in the question:
The final temperature is about 39.1 °C.
Answer:
The pressure in the new flask would be if the
here acts like an ideal gas.
Explanation:
Assume that the sample here acts like an ideal gas. By Boyle's Law, the pressure
of the gas should be inversely proportional to its volume
.
For example, let the initial volume and pressure of the sample be and
. The new volume
and pressure
of this sample shall satisfy the equation:
.
In this question,
The goal is to find the new pressure of this gas, .
Assume that this sample is indeed an ideal gas. Then the equation should still hold. Rearrange the equation to separate the unknown,
. Note: make sure that the units for
and
are the same before evaluating. That way, the unit of
.