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:
Mars
Explanation:
neither Mercury nor Venus have any moons at all, Earth has one and Mars has its two small moons
this is the answers and working out to both questions
Answer:
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Explanation: