Question:
What is the entropy change (in JK–1mol–1) when one mole of ice is converted into water at 0ºC?(The enthalpy change for the conversion of ice to liquid water is 6.0 KJ mol–1 at 0ºC)
What is the entropy change (in JK–1mol–1) when one mole of ice is converted into water at 0ºC?(The enthalpy change for the conversion of ice to liquid water is 6.0 KJ mol–1 at 0ºC)
Updated On: Apr 21, 2025
20.13
2.013
2.198
21.98
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The Correct Option is D
Solution and Explanation
you can use the equation:
\(\Delta S=\frac{\Delta H}{T}\)
Given:
Enthalpy change (ΔH) = 6.0 kJ/mol = 6.0kJ/mol×1000J/kJ = 6000J/mol
Temperature (T) = 0°C = 273.15 K
Now, plug the values into the equation:
ΔS = \(\frac{6000\,J/mol}{273.15\,K}\)
ΔS ≈ 21.98 J/K/mol
So, the correct answer is (D): 21.98 J/K/mol
\(\Delta S=\frac{\Delta H}{T}\)
Given:
Enthalpy change (ΔH) = 6.0 kJ/mol = 6.0kJ/mol×1000J/kJ = 6000J/mol
Temperature (T) = 0°C = 273.15 K
Now, plug the values into the equation:
ΔS = \(\frac{6000\,J/mol}{273.15\,K}\)
ΔS ≈ 21.98 J/K/mol
So, the correct answer is (D): 21.98 J/K/mol
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Concepts Used:
Radiation
Radiation is the energy or particles from a source that travels from one media to other. It travels through a medium after its emission from a source and is absorbed by matter.
Forms of Radiation:
- Particle Radiation includes the alpha (α), beta (β), and neutron radiations.
- Gravitational Radiation includes the radiation that takes the form of gravitational waves or as ripples in the curvature of space-time.
- Acoustic Radiation includes ultrasound, seismic and sound waves.
- Electromagnetic Radiation is inclusive of radio waves, gamma radiation (γ), x-rays, and visible light.
Types of Radiation:
- Ionizing Radiation - It carries more than 10 eV, that is enough to ionize atoms and molecules and break chemical bonds.
- Non-ionizing Radiation – It consists of alpha particles, beta particles, and gamma particles, whereas ionizing radiation consists of microwave radiation, infrared radiation and radio waves.
Read More: Types of Radiation