How much energy is released by a 1500-w heater in 1 hour? Express your answer in kJ
How much energy is released by a 1500-w heater in 1 hour? Express your answer in...
1500-W heater is connected to a 120-V line for 2.0 hours.How much heat energy is produced? A) 1.5 kJ B) 11 MJ C) 0.18 MJ D) 3.0 kJ
An electric heater is rated at 1500 W, a toaster at 750 W, and an electric grill at 1000 W. The three appliances are connected in parallel to common 120 V household circuit. (a) How much current does each draw? (b) Is a circuit with a 25.0 Amp circuit breaker sufficient in this situation? Numerically justify your answer.
Burning 1.00 mol of methane releases 803 kJ of energy. How much energy is released by burning 27.3 mol of methane? CH, (g) +202(g) + CO2(g) + 2H2O(g) + 803 kJ Express your answer with the appropriate units. E- Value Units Submit Request Answer
Burning 1.00 mol of methane releases 803 kJ of energy. How much energy is released by burning 27.7 mol of methane? CH4(g)+2O2(g)→CO2(g)+2H2O(g)+803kJ Express your answer with the appropriate units.
An office heater puts out 2030 Btus of energy in the form of heat per hour. Given that 1 Btu = 1.055 kJ, how many megajoules of energy in the form of heat can be produced per year (365 days) by the heater (assume continuous operation)?
The sun produces energy via fusion. One of the fusion reactions that occurs in the sun is 411H→42He+201e How much energy in joules is released by the fusion of 2.60 g of hydrogen-1? Express your answer to three significant figures and include the appropriate units.
An electric heater draws 10A when connected to a 115V outlet. How much energy does the heater consume over a period of 6 hours and If the utility company charges 10 cents for each KWatt-hour, how much, in dollars, should be paid to the company in 1 month?
1. a) How much work is done by/on the system when is taken from point a to point b following the path indicated in the figure? b) How much heat is absorbed/released by the system when is taken from point a to point b following the path indicated in the figure? Express your answer in kJ c) What is the change in internal energy, ?U? Express your answer in kJ. 2. a) How much work is done on the system...
Your roommate leaves a 120 W fan running in your apartment. Over the course of an hour, how much thermal energy does the fan add to the air?
How much heat energy (in kj) will be absorbed or released if 11.5 grams of ammonia is produced? State whether the energy will be absorbed or released?