Question

4. The temperature of water in a beaker is 77°F. By how much should
the temperature be increased to boil it?
1) 50°C 275°C
3) 30°C
4)
85°C​

Answer 1

Answer:

2 is correct answer

hope help full

Answer 2

The temperature should be increased by 75°C to boil the water in the beaker (option 2).

Given,

The temperature of water in a beaker = 77°F

To find,

The required increase in the temperature to boil the water.

Solution,

The required increase in the temperature to boil the water will be 75°C.

We can easily solve this problem by following the given steps.

The temperature of the water is given in Fahrenheit. We need to convert it into Celsius as the options are in Celsius.

Now, the formula to convert the temperature from Fahrenheit to Celsius is ( °F - 32 ) × 5/9.

The temperature of water in a beaker = 77°F

(77 - 32) × 5/9

45 × 5/9

5×5 = 25°C

So, the temperature of water in a beaker is 25°C.

We know that the boiling point of water is 100°C.

So, the increase in temperature will be (100-25)°C which is 75°C.

Hence, the required increase in the temperature to boil the water is 75°C.