Question

a certain household has consumed 250 units of energy during a month how much energy is is this in joules​

Answer 1

Answer:

1 unit of energy is equal to a 1-kilowatt hour (kWh).

Energy (E) = 250 units

1 unit = 1 kWh

1 kWh = 3.6 x 10⁶ J

Therefore,

Energy = 250 x 3.6 x 10⁶ J

E = 900 x 10⁶ J

E = 9 x 10⁸ J

Thus, the household consumes 9 x 108 J or 900 MJ of energy in a month.

Answer 2

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1 unit of energy is equal to 1 kilowatt hour (kWh).

1 unit = 1 kWh

1 kWh = $\sf{3.6 \times 10^{6} J}$

Therefore, 250 units of energy = $\sf{250 \times 3.6 \times 10^{6}  = 9 \times 10^{8} J }$