Answer:
A. To increase enthalpy
Explanation:
Because the burner is the engine of the hot air balloon it is what propels the hot air up into the envelope to make the balloon rise
Answer:
PV=nRT
Explanation:
P= Pressure
V= Volume
n= amount of substance (usually moles)
R= Ideal Gas Constant (8.314 J/mol*K
T= Temperature
Atomic number is 57, and the atomic mass is 138.90547 u + 0.00007 u
Explanation:
one gram of hydrogen contains one mole of hydrogen as its atomic weight is 1. One mole is 6.02x10^23 atoms. But, hydrogen is diatomic, meaning its atoms are found in pairs so, the amount of molecules would be 3.01x10^23.
so , 1000 grams = 3.01 x 10 ^ 23 x 1000
= 3.01 x 10 ^ 26