2. Nowadays Mr. Mumin is producing one kind of gas from the excrement of animal farms. He can sell extra gas after fulfilling the demand of his own firm. a) What is power? b) Describe the necessity of energy transformation. c) Explain the nature of the source of energy of the gas produced by stimulator. d) Analyze the importance of activities of Mr. Mumin regarding energy conservation.
Answer (1)
a) What is power?
Power is the rate at which work is done or energy is transferred over time. In other words, it tells us how quickly energy can be used or generated. The unit of power in the International System of Units (SI) is the watt (W), where 1 watt is equal to 1 joule per second. The formula for power can be given as:
P = t W
where:
P is the power,
W is the work done or energy transferred,
t is the time taken.
b) Describe the necessity of energy transformation.
Energy transformation is necessary to convert energy from one form to another to make it usable for different processes and devices. For instance:
In power plants, chemical energy from fuels like coal or natural gas is transformed into electrical energy used to power homes and industries.
Solar panels transform sunlight (solar energy) into electrical energy.
A car engine transforms chemical energy from the fuel into kinetic energy that powers the vehicle.
Without energy transformation, we couldn't utilize energy efficiently in different forms as per our needs.
c) Explain the nature of the source of energy of the gas produced by stimulator.
The gas produced by the stimulator, likely referring to biogas, comes from the breakdown of organic matter in the excrement of animal farms. This process is typically anaerobic digestion, where microorganisms break down the material in the absence of oxygen, producing methane—a combustible gas that can be used as an energy source. This is considered a renewable energy source because it uses waste that would otherwise contribute to pollution.
d) Analyze the importance of activities of Mr. Mumin regarding energy conservation.
Mr. Mumin's activities are significant in several ways:
Renewable Resource Utilization: By producing biogas, he's tapping into a renewable energy source, which helps reduce reliance on fossil fuels.
Waste Management: Utilizing animal farm excrement for gas production helps manage waste efficiently and reduces environmental pollution.
Energy Efficiency: After meeting his own energy demands, selling the excess gas promotes efficient energy use and supports the local energy economy.
Environmental Impact: This practice reduces greenhouse gas emissions such as methane that would otherwise be released into the atmosphere, contributing to a more sustainable environment.
Overall, these activities highlight a practical approach to conservatively using resources and supporting sustainability initiatives.
