Which of the following statements are true? 1.When a system loses energy its energy goes up...

Which of the following statements are true?

1.When a system loses energy its energy goes up TRUE or FALSE

2. When a system loses energy the surrounding\'s energy goes up TRUE or FALSE

3. A combustion reaction, like a candle burning, loses energy and so the surroundings get hot. TRUE or FALSE

4. In a chemical reaction, the \"system\" is the chemicals involved in the reaction and the \"surroundings\" is everything else. TRUE or FALSE

5. In a chemical reaction, the \"system\" is the chemicals involved in the reaction and the beaker that contains them, the \"surroundings\" is everything outside of the beaker. TRUE or FALSE

Expert Solution

1.When a system loses energy its energy goes up FALSE

reason: POTENTIAL ENERGY DECREASES

2. When a system loses energy the surrounding\'s energy goes up TRUE

reason: Exothermic reactions may occur spontaneously and result in higher randomness or entropy (ΔS > 0) of the system. They are denoted by a negative heat flow (heat is lost to the surroundings) and decrease in enthalpy (ΔH < 0)

3. A combustion reaction, like a candle burning, loses energy and so the surroundings get hot. TRUE

4. In a chemical reaction, the \"system\" is the chemicals involved in the reaction and the \"surroundings\" is everything else. TRUE

reason: the object which is under observation is called as the system

5. In a chemical reaction, the \"system\" is the chemicals involved in the reaction and the beaker that contains them, the \"surroundings\" is everything outside of the beaker. FALSE

reason: the object which is not under observation is not a system i.e, beaker is not involving in the reaction

queen_honey_blossom answered 2 years ago

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