Question

3. Define heat? 34
4. What is indicator? Give two example​

Answer 1

Answer:

Heat is the form of energy that is transferred between systems or objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules.

Acid-base indicators are chemicals used to determine whether an aqueous solution is acidic, neutral, or alkaline. Because acidity and alkalinity relate to pH, they may also be known as pH indicators. Examples of acid-base indicators include litmus paper, phenolphthalein, and red cabbage juice.

Explanation:

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Answer 2

Answer:

Hope it Helps !!!

Explanation:

1) Define Heat.

Ans) Heat is the form of energy that is transferred between systems or   objects with different temperatures (flowing from the high-temperature system to the low-temperature system). Also referred to as heat energy or thermal energy. Heat is typically measured in Btu, calories or joules.

2) What is Indicator ? Give two examples.

Ans) An indicator is a halochromic chemical compound added in small amounts to a solution so the pH of the solution can be determined visually. Examples are :- Litmus, Thymol Blue, Phenol Red and Methyl Orange.