Alpha and Beta particles can be stopped by our skin. Gamma particles cannot be stopped by our skin.
The standard molar volume of a gas at STP is 22.4 L for 1 mole of gas at a temperature equal to 273.15 K and a pressure equal to 1.00 atm!
That's when you "compress" the gas
About 1 part of a billion. I looked it up.
Hthe heat required to change the temperfature of 100 grams of water from 25 to 55 c is calculated as below
Q(heat) = M(mass) x C(specific heat capacity) x delta T(change in temperature)
M= 100 grams
C= 4.18 j/g/c
delta T= 55-25 =30c
Q=100 g x4.814 j/g/c x 30c = 12552 joules