Increase
Unemployment could increase because robots could be used in place of human labor, which in turn means people lose their jobs.
Answer: -112200J
Explanation:
The amount of heat (Q) released from an heated substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)
Thus, Q = MCΦ
Since,
Q = ?
Mass of water vapour = 30.0g
C = 187 J/ G°C
Φ = (Final temperature - Initial temperature)
= 100°C - 120°C = -20°C
Then apply the formula, Q = MCΦ
Q = 30.0g x 187 J/ G°C x -20°C
Q = -112200J (The negative sign does indicates that heat was released to the surroundings)
Thus, -112200 joules of heat is released when cooling the superheated vapour.
Answer:
The oceans are the very foundation of human life. life itself arose from the oceans. The oceans are vast, covering about 140 million square miles, some covering 72 percent of the earth's surface.
Explanation:
Answer:
Carbon dioxide is produced whenever an acid reacts with a carbonate. This makes carbon dioxide easy to make in the laboratory. Calcium carbonate and hydrochloric acid are usually used because they are cheap and easy to obtain. Carbon dioxide can be collected over water, as shown in the diagram.
Answer:
Option (C).
Explanation:
The lac operon may be defined as the group of genes that are involved in the lactose metabolism of the <em>E.coli</em> bacteria. François Jacob and Jacques Monod was the first scientists to explain the mechanism of Lac operon.
The production of large amount of beta-galactosidase by the cells, the lactose level will decrease. This causes the elevation of the glucose level in the E.coli bacteria.
Thus, the correct answer is option (c).
