Which of the following will increase with the increase in temperature?

Options

A. Surface tension
B. Viscosity
C. Molality
D. Vapour pressure

Answer

To answer the question "Which of the following will increase with the increase in temperature?", we need to analyze the options provided (though they are not listed in your prompt, I will provide a general approach).

### Step-by-Step Solution:

1. **Identify the Options**: First, we need to identify the options given in the question. Common options might include:
- Kinetic energy of molecules
- Solubility of solids in liquids
- Rate of chemical reactions
- Vapor pressure of liquids

2. **Analyze Each Option**:
- **Kinetic Energy of Molecules**: As temperature increases, the kinetic energy of molecules also increases. This is because temperature is a measure of the average kinetic energy of the particles in a substance.
- **Solubility of Solids in Liquids**: Generally, the solubility of most solid solutes in liquids increases with an increase in temperature. However, there are exceptions (like some salts).
- **Rate of Chemical Reactions**: The rate of chemical reactions typically increases with temperature due to higher kinetic energy, leading to more frequent and effective collisions between reactant molecules.
- **Vapor Pressure of Liquids**: The vapor pressure of a liquid increases with temperature because more molecules have enough energy to escape the liquid phase and enter the vapor phase.

3. **Conclusion**: Based on the analysis:
- Kinetic energy of molecules increases with temperature.
- Solubility of solids in liquids generally increases with temperature (with some exceptions).
- Rate of chemical reactions increases with temperature.
- Vapor pressure of liquids increases with temperature.

4. **Final Answer**: Therefore, all the options mentioned (if they were among the choices) would increase with an increase in temperature.