Answer:
Slope = M / s
k = +0.016 / s
Explanation:
Given:
- A first order reaction ---- (missing from question)
- Slope is -0.016
Find:
Units of Slope and value of k
Solution:
- The slope of the concentration time graph is called the rate of reaction. For which the rate of reactions is always expressed as change in concentration of reactants per unit time. Hence,
Slope = Change in concentration / time
Slope = M / s
- The units of k constant depends on the order of reaction. The graph given is of first order. Hence, the sum of moles of reactants and products is the same. Hence, the units of constant k is given by:
k = +0.016 / s
Answer:
<em>13 m/s²</em>
Explanation:
Mass of object = 200 Kg
Applied force = 2600 N
Acceleration = ?
Solution:
Definition:
The acceleration is rate of change of velocity of an object with respect to time.
Formula:
a = Δv/Δt
a = acceleration
Δv = change in velocity
Δt = change in time
Units:
The unit of acceleration is m.s⁻².
Acceleration can also be determine through following formula,
F = m × a
a = F/m (N = kgm/s²)
a = 2600 kgm/s² / 200 Kg
a = 13 m/s²
In gas turbine engines, when the gas is compressed, the compression work requirements are negligible. This statement is false. So the correct option is (b).
An example of an internal combustion engine is a gas turbine. In essence, the engine can be thought of as an energy conversion system that transforms fuel energy into mechanical energy that is usable in the form of rotational power.
Since the steady-flow work is proportional to the specific volume of gas turbine engines, the compression work requirements are relatively high. Gases go through four thermodynamic processes in an ideal gas turbine: isentropic compression, isobaric combustion (constant pressure), isentropic expansion, and heat rejection. The Brayton cycle is made up of all of them.
Learn more about turbine engines here:
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