Answer:
When put into steam
Step-by-step explanation:
When a certain amount of steam at boiling temperature condenses (turning into water), the amount of heat released is

where in this case
m = 25.0 g = 0.025 kg is the mass of steam at 100.0°C
is the latent heat of vaporization of water
So,

Instead, the amount of heat released when the water at 100.0°C is cooled down to 34.0°C is given by

where
m = 25.0 g = 0.025 kg is the mass of water
is the specific heat of water
is the change in temperature
Therefore,

Since
, we can say that your hand will burn more in the first case.