Cyclopropane and propylene isomers both have the formula c3h6. based on the molecular structures shown, which of these isomers w
ould you expect to have the higher standard molar entropy at 25 oc
1 answer:
The measure of randomness or uncertainty of the substance is known as the entropy of the substance.
Under the standard state, the entropy of one mole of substance is known as its standard molar entropy.
The structure of cyclopropane and propylene is shown in the attached image.
Since, the structure of propylene is an open chain structure thus, possessing high randomness. Whereas the structure of cyclopropane is ring (closed) structure and thus, not that much free to move and has less randomness.
Hence, the structure of propylene will have the higher standard molar entropy.
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Answer:
(a) the mass of the water is 3704 g
(b) the mass of the water is 199, 285.7 g
Explanation:
Given;
Quantity of heat, H= 8.37 x 10⁶ J
Part (a) mass of water (as sweat) need to evaporate to cool that person off
Latent heat of vaporization of water, Lvap. = 2.26 x 10⁶ J/kg
H = m x Lvap.
mass in gram ⇒ 3.704 kg x 1000g = 3704 g
Part (b) quantity of water raised from 25.0 °C to 35.0 °C by 8.37 x 10⁶ J
specific heat capacity of water, C, 4200 J/kg.°C
H = mcΔθ
where;
Δθ is the change in temperature = 35 - 25 = 10°C
mass in gram ⇒ 199.2857 kg x 1000 g = 199285.7 g