The effective velocity of molecules in 2.0 g of hydrogen gas is 1800 m/s.
Answer 1
translational kinetic energy = 1/2mv^2 = 1/2(2.0g/1000g)(1800)^2 = 3240J or 3.2 kJ
thermal energy = 5/3 * 1/2mv^2 = 5.3 kJ
Hydrogen (H2) has 3 translational degrees of freedom plus 2 rotational degrees of freedom
answer 2
Same as gelatin speed, (strawberry)