Thermal capacity
6.0 kJ raises an object by 20 K. Find C.
Specific heat capacity
0.80 kg receives 18 kJ and warms by 25 K. Find c.
Electrical experiment
Explain why ignoring heat loss usually makes the calculated c too large.
Latent heat
Find Q to vaporise 0.025 kg when Lv=2.26×10⁶ J kg⁻¹.
Heating curve
Explain a flat section while heating continues.
Internal energy
Distinguish internal energy from a moving container's kinetic energy.
First law
A gas loses 240 J by cooling while 90 J of work is done on it. Find ΔU.