Answer:
Heat is converted completely into work during isothermal expansion
Explanation:
first law:
∴ ΔU = CvΔT = 0....isothermal
⇒ Q = - W
The difference between all of them in the make-up of the R group.
Answer:
G° would be negative when temperatures are above 691K
Explanation:
G° could be found as:
G° = H° - TS°
As <em>H° = 98.8 kJ and S° = 143 J/K</em>; G° would be negative when H° < TS°, that is:
H° < TS°
98800J < 143 J/K ₓ T
691K < T
That means <em>G° would be negative when temperatures are above 691K</em>
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I hope it helps!
When copper (ii) oxide is heated in presence of hydrogen gas it produces copper metal and water vapor.
that is
CuO + H2 = Cu + H2O
The moles of copper metal produced is calculated as below
find the moles of CUO used
moles = mass/molar mass
=5.6/79.5 =0.07 moles
by use of mole ratio between CUO:Cu which is 1:1 the moles of Cu is also
=0.007 moles of Cu