Answer:d
Explanation:Since the earth would be closer to the sun the ozone layer would not be able to handle the more powerful ultra violet rays making the earth to hot.
Answer:
a. T and P remain the same (T=298 K and P=1 bar)
b. 11.23J/K
Explanation:
a. Since the mixing process of an idea gas doesn't present a change in the enthalpy, we could state that no change in neither temperature and pressure are given.
b. It is not necessary to know enthalpy data, the following formula is enough to compute the entropy change:
Δ
Thus, the molar fractions are equal to 0.5, and the result yields:
Δ
Δ
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Ammonium magnesium phosphate hexa-hydrate usually looses its water of crystallization in a gradual manner. At the temperature above 100 degree Celsius the compound would have lost all its water of crystallization.<span />
Answer:
46.004 g/mol
Explanation:
Scottish physicist Thomas Graham formulated a law known as Graham's law of effusion in 1848. He conducted an experiment and found the relationship between the rate of effusion of a gas and its molar mass as:
where,
r is the rate of effusion of a gas
M is the molar mass of the gas.
Also, r = v/t
And for two gases taking different t₁ and t₂ to effuse, the formula is:
So,
For Neon :
= 8.61 minutes
= 20.1797 g/mol
For unkown gas:
= 13.0 minutes
= ? g/mol
<u>Molar mass of unknown gas = 46.004 g/mol</u>