Question

A sample of gaseous hydrogen is heated by an electrical coil. If 2x10³ joules of energy are added to a 13.4 gram sample initially at 23.0°C, what is the final temperature of the hydrogen?

Answer 1

To calculate the final temperature of hydrogen when 2x10³ joules of energy are added to a 13.4 gram sample initially at 23.0°C, use the equation Q = mcΔT.

Step-by-step explanation:

To calculate the final temperature of hydrogen when 2x10³ joules of energy are added to a 13.4 gram sample initially at 23.0°C, we can use the equation:

Q = mcΔT

where Q is the heat energy, m is the mass of the sample, c is the specific heat capacity, and ΔT is the change in temperature.

First, we need to find the heat energy:

Q = 2x10³ joules

Next, we can use the specific heat capacity of hydrogen (cp) to calculate the change in temperature:

ΔT = Q / (mc)

Finally, we can find the final temperature by adding the change in temperature to the initial temperature:

Final Temperature = Initial Temperature + ΔT