Rate of evaporation is increased by increasing ________ and _________.

Answer

To answer the question "Rate of evaporation is increased by increasing ________ and _________", we can follow these steps:

### Step 1: Understand the concept of evaporation
Evaporation is the process where liquid turns into vapor. It occurs when molecules at the surface of a liquid gain enough energy to overcome intermolecular forces and escape into the air.

**Hint:** Think about what conditions allow molecules to gain energy and escape from the liquid.

### Step 2: Identify factors that affect evaporation
The rate of evaporation can be influenced by various factors. In this case, we need to identify two specific factors that increase the rate of evaporation.

**Hint:** Consider environmental conditions and physical properties of the liquid.

### Step 3: Determine the first factor - Temperature
Increasing the temperature of a liquid provides more energy to its molecules. As the temperature rises, more molecules have enough kinetic energy to escape into the vapor phase, thus increasing the rate of evaporation.

**Hint:** Remember that heat energy affects molecular motion.

### Step 4: Determine the second factor - Surface Area
The surface area of the liquid also plays a crucial role in evaporation. A larger surface area allows more molecules to be exposed to the air, which increases the chances of them escaping into the vapor phase. For example, water in a wide container will evaporate faster than water in a narrow container.

**Hint:** Think about how spreading out a liquid affects its interaction with the surrounding air.

### Final Answer
Therefore, the rate of evaporation is increased by increasing **temperature** and **surface area**.