The colision of two plates causes the fomation of _____ mountain
1 answer:
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Answer:
209.8 kilo Joules heat is required to vaporize 250 g of ethanol at 78.5 °C.
Explanation:
Mass of an ethanol = 250 g
Molar mass of ethanol = 46 g/mol
Moles of an ethanol =
Enthalpy of vaporization of ethanol =
Heat required to vaporize 250 g of ethanol at 78.5 °C : Q
Q = 209.8 kilo Joules
Answer:
The correct option is methane :.
Explanation:
Average speed of the gas molecules id given by expression:
k = Boltzmann cosnatnt
T = Temperature of the gas molecules = 355 K
m = molecular mass of the molecule
Molar mass of methane = 18 g/mol
Molar mass of neon = 20.18 g/mol
Molar mass of ethene = 28 g/mol
Molar mass of chlorine gas = 70 g/mol
Lower the value of molar mass of gas molecule higher will be the average speed.So, from the given options methane gas greatest average seed because it has lowest molecular mass