What happens to the temperature of the liquid in a cup of water when come of the water evaporates?

Chemistry

1 answer:

Alenkinab [10]2 years ago

3 0

Explanation:

When some of the water evaporates then it means that molecules of water has absorbed heat from the surroundings and liquid state of water turns into vapour state.

Therefore, a cooling effect is observed because heat of surrounding molecules has decrease due to absorbtion by water molecules.

Hence, temperature will decrease as cooling effect is observed.

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What is the Gibbs energy, LaTeX: \Delta GΔ G, when the very first crystal of potassium nitrate forms in solution while cooling,

VARVARA [1.3K]

Answer:

74.344 kJ.

Explanation:

Below is an attachment containing the solution.

3 0

3 years ago

1. A 10 g gold coin is heated from 25°C to 50°C (CAu is 0.13 J/g-°C). What is the H?

Oksanka [162]

The correct answer is + 32.5 J because heat is absorbed here by copper not evolved also after calculation we will find the H value is positive, lets calculate it:
H = m C Δt where:
m = 10 g
C = 0.13 J/g.°C
Δ t = final temperature - initial temperature = 50 - 25 = + 25 °C
so H = 10 x 0.13 x (+25) = + 32.5 J

4 0

3 years ago

Please help me with this question!!

mestny [16]

Answer: 824.6 g of NaCl are produced from 500.0 g of chlorine.

Explanation:

To calculate the moles :

$\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}$ $\text{Moles of} Cl_2=\frac{500.00g}{71g/mol}=7.04moles$