A111.6 g sample of iron was heated from 0°c to 20°c. it absorbed 1004 j of energy. what is the specific heat capacity of iron?
0.00578 j/g°c
0.45 j/g°c
2.20 j/g°c
4.18 j/g°c

= 449.82 J/kg/K

Quantity of heat by a substance is given by the formula;

Q = McΔθ

Where; Q is the quantity of heat,m is the mass in Kg, c is the specific heat capacity, Δθ is the change in temperature.

Q = 1004 Joules, mass = 0.1116 Kg and Δθ = 20

Therefore;

1004 J= 111.6/1000 × 20 × c

1004 J = 0.1116 × 20 × c

c = 1004/(0.1116 × 20)

  = 449.82 J/kg/K

correct answer: understand the different control methods available

integrated pest management is an strategy that is based on the ecosystem and try to prevent the pest and the damage caused by them by applying combination of technique like habitat manipulation, biological control and use of resistant varieties.

the main aim of the integrated pest management is not to completely eliminate the pest but to strengthen the ecosystem so that conditions are favorable for plants and unfavorable for pests.

meiosis is the first to occur after the nuclei of opposite of opposite mating types fuse