The process melts an ore to separate useful metals from the rest of the elements in the ore is called smelting. The ore is heated beyond its melting point to extract the metal with the help of oxidizing agents such as air or reducing agents such as coke.
Answer: The given decay process is beta decay.
Explanation:
Beta-decay is defined as the decay process in which a neutron gets converted into a proton and an electron releasing a beta-particle. The beta particle released carries a charge of -1 units and has a mass of 0 units.
The chemical reaction for converting carbon nucleus to nitrogen nucleus, the equation follows:
Thus, the given decay process is beta decay.
The pressure of the gas will become double when its Kelvin temperature becomes its initial value.
Further Explanation:
Ideal gas equation:
Ideal gas is just a theoretical concept and practically no gas can act as ideal. It can be considered as group of random moving particles having perfectly elastic collisions between them.
Ideal gas equation for one mole of gas is mentioned below.
PV = RT …… (1)
Here,
P is the gas pressure.
V is the gas volume.
T is the absolute temperature of gas.
R is the universal gas constant.
Standard conditions refer to state when pressure of gas is 1 atm and its temperature is 273 K.
Consider P’ and T’ to be new pressure and temperature respectively while all other terms in ideal gas equation remains constant. Equation (1) then modifies as follows:
P’V = RT’ …… (2)
Since new pressure is doubled, P’ becomes 2P. Equation (2) becomes,
(2P)V = RT’ …… (3)
Dividing equation (3) by equation (1), we get:
…… (4)
Solving for T’,
Therefore pressure is doubled when temperature becomes twice its initial value.
Learn more:
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Ideal gas equation
Keywords: ideal gas equation, R, T, P, V, 2P, 2T, pressure, volume, universal gas constant, P’, T’, standard conditions.
A lever with a mechanical advantage greater than 1 is used to lift a larger load.
A beam or stiff rod is pivoted at a fixed, or fulcrum, to form a simple machine known as a lever. A stiff body that can rotate about a point on itself is called a lever. The three types of levers are categorised according to where the fulcrum, weight, and effort are located.
Mechanical advantage is the relationship between a machine's capacity to lift a load and the effort required to operate it. A machine is said to be a force multiplier if its mechanical advantage is larger than 1.
The effort arm and load arm of the lever are the same length when the mechanical advantage is equal to 1. Levers are employed to obtain an advantage when the mechanical advantage is less than 1.
Thus, A lever with a mechanical advantage greater than 1 is used to lift a larger load.
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Answer:
to increase force
Explanation: